/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -20;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var Marksman = Container.expand(function () {
	var self = Container.call(this);
	var marksmanGraphics = self.attachAsset('marksman', {
		anchorX: 0.5,
		anchorY: 1
	});
	var rifleGraphics = self.attachAsset('rifle', {
		anchorX: 0,
		anchorY: 0.5,
		y: -40
	});
	self.targetX = 2048 / 2;
	self.targetY = 2732 - 150;
	self.shoot = function (targetX, targetY) {
		var bullet = new Bullet();
		bullet.x = self.x;
		bullet.y = self.y - 60;
		// Calculate angle to target
		var dx = targetX - bullet.x;
		var dy = targetY - bullet.y;
		var angle = Math.atan2(dy, dx);
		// Set bullet velocity towards target
		bullet.speed = -20;
		bullet.velocityX = Math.cos(angle) * 20;
		bullet.velocityY = Math.sin(angle) * 20;
		// Override update to use velocity
		bullet.update = function () {
			bullet.x += bullet.velocityX;
			bullet.y += bullet.velocityY;
		};
		bullets.push(bullet);
		game.addChild(bullet);
		LK.getSound('shoot').play();
	};
	self.update = function () {
		// Smooth movement towards target position
		var dx = self.targetX - self.x;
		self.x += dx * 0.1;
		// Update rifle rotation to aim at crosshair
		if (aimX !== undefined && aimY !== undefined) {
			var angle = Math.atan2(aimY - self.y + 40, aimX - self.x);
			rifleGraphics.rotation = angle;
		}
	};
	return self;
});
var Target = Container.expand(function () {
	var self = Container.call(this);
	var targetGraphics = self.attachAsset('target', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 2;
	self.hit = false;
	self.update = function () {
		if (!self.hit) {
			self.y += self.speed;
		}
	};
	self.destroy = function () {
		Container.prototype.destroy.call(self);
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87ceeb
});

/**** 
* Game Code
****/ 
var marksman = new Marksman();
marksman.x = 2048 / 2;
marksman.y = 2732 - 50;
game.addChild(marksman);
var targets = [];
var bullets = [];
var currentScore = 0;
var missedTargets = 0;
var maxMissedTargets = 5;
var lastTargetSpawn = 0;
var targetSpawnInterval = 2000; // 2 seconds
var aimX, aimY;
var consecutiveMisses = 0;
var globalTime = 10000; // 10 seconds initial time
var maxGlobalTime = 10000;
var activeTarget = null;
var lastShotTime = 0;
var shotCooldown = 500; // Half second cooldown
// Global timer bar background
var globalTimerBg = LK.getAsset('timerBackground', {
	anchorX: 0.5,
	anchorY: 0.5,
	scaleX: 3,
	scaleY: 1.5
});
globalTimerBg.x = 2048 / 2;
globalTimerBg.y = 137;
game.addChild(globalTimerBg);
// Global timer bar foreground
var globalTimerBar = LK.getAsset('timerBar', {
	anchorX: 0,
	anchorY: 0.5,
	scaleX: 3,
	scaleY: 1.5
});
globalTimerBar.x = 2048 / 2 - 150;
globalTimerBar.y = 137;
game.addChild(globalTimerBar);
// Score display
var scoreTxt = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Missed targets display
var missedTxt = new Text2('Missed: 0/5', {
	size: 40,
	fill: 0xFF4444
});
missedTxt.anchor.set(1, 0);
missedTxt.y = 80;
LK.gui.topRight.addChild(missedTxt);
// Crosshair
var crosshairH = LK.getAsset('timerBar', {
	anchorX: 0.5,
	anchorY: 0.5,
	scaleX: 0.3,
	scaleY: 0.1,
	tint: 0xffffff
});
var crosshairV = LK.getAsset('timerBar', {
	anchorX: 0.5,
	anchorY: 0.5,
	scaleX: 0.1,
	scaleY: 0.3,
	rotation: Math.PI / 2,
	tint: 0xffffff
});
game.addChild(crosshairH);
game.addChild(crosshairV);
game.move = function (x, y, obj) {
	aimX = x;
	aimY = y;
	marksman.targetX = x;
	crosshairH.x = x;
	crosshairH.y = y;
	crosshairV.x = x;
	crosshairV.y = y;
};
game.down = function (x, y, obj) {
	aimX = x;
	aimY = y;
	// Check if enough time has passed since last shot
	if (LK.ticks - lastShotTime > shotCooldown / 16.67) {
		marksman.shoot(x, y);
		lastShotTime = LK.ticks;
	}
};
game.update = function () {
	// Spawn more targets as score increases
	if (LK.ticks - lastTargetSpawn > targetSpawnInterval / 16.67) {
		var target = new Target();
		target.x = Math.random() * (2048 - 160) + 80;
		target.y = -50;
		// Increase target speed based on score - much slower increase
		target.speed = 2 + Math.floor(currentScore / 100) * 0.2;
		targets.push(target);
		game.addChild(target);
		lastTargetSpawn = LK.ticks;
		// Decrease spawn interval very gradually as score increases
		targetSpawnInterval = Math.max(1000, 2000 - currentScore * 5);
	}
	// Update global timer if there's an active target
	if (activeTarget && !activeTarget.hit) {
		globalTime -= 16.67; // ~60fps
		// Update timer bar
		var timePercent = Math.max(0, globalTime / maxGlobalTime);
		globalTimerBar.scaleX = timePercent * 3;
		// Change color based on time remaining
		if (timePercent > 0.5) {
			globalTimerBar.tint = 0x00ff00; // Green
		} else if (timePercent > 0.2) {
			globalTimerBar.tint = 0xffff00; // Yellow
		} else {
			globalTimerBar.tint = 0xff0000; // Red
		}
		// Check if time expired
		if (globalTime <= 0) {
			// Game over immediately when timer expires
			LK.showGameOver();
			return;
		}
	}
	// Set active target to first unhit target
	if (!activeTarget || activeTarget.hit) {
		for (var i = 0; i < targets.length; i++) {
			if (!targets[i].hit) {
				activeTarget = targets[i];
				break;
			}
		}
	}
	// Update and check targets
	for (var i = targets.length - 1; i >= 0; i--) {
		var target = targets[i];
		// Check if target is at same horizontal level as marksman (game over condition)
		if (!target.hit && target.y >= marksman.y - 100 && target.y <= marksman.y + 100) {
			// Game over when target reaches marksman level
			LK.showGameOver();
			return;
		}
		// Remove targets that are off screen
		if (target.y > 2732 + 100) {
			if (target === activeTarget) {
				activeTarget = null;
			}
			target.destroy();
			targets.splice(i, 1);
		}
	}
	// Update and check bullets
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		// Check bullet-target collisions
		for (var j = targets.length - 1; j >= 0; j--) {
			var target = targets[j];
			if (!target.hit && bullet.intersects(target)) {
				// Hit!
				target.hit = true;
				target.alpha = 0.3;
				currentScore += Math.floor(globalTime / 100) + 10; // Bonus for faster shots
				scoreTxt.setText('Score: ' + currentScore);
				consecutiveMisses = 0; // Reset consecutive misses
				// Calculate decreased timer based on score - decrease by 100ms per 10 points, minimum 1000ms
				var scoreDecrease = Math.floor(currentScore / 10) * 100;
				var decreasedMaxTime = Math.max(1000, 10000 - scoreDecrease);
				// Reset global timer to decreased maximum
				globalTime = decreasedMaxTime;
				maxGlobalTime = decreasedMaxTime; // Update max time for future calculations
				if (target === activeTarget) {
					activeTarget = null;
				}
				LK.getSound('hit').play();
				LK.effects.flashObject(target, 0xffffff, 300);
				// Remove bullet
				bullet.destroy();
				bullets.splice(i, 1);
				break;
			}
		}
		// Remove bullets that are off screen
		if (bullet && (bullet.y < -50 || bullet.y > 2732 + 50 || bullet.x < -50 || bullet.x > 2048 + 50)) {
			bullet.destroy();
			bullets.splice(i, 1);
		}
	}
	// Game continues endlessly - no win condition
};
// Start background music
LK.playMusic('gameMusic');